Snakes - San Francisco Garter, Scarlet King, Rough Green, Northwestern Garter - PC-103, ©1994

Snakes - San Francisco Garter, Scarlet King, Rough Green, Northwestern Garter - PC-103, ©1994, Box: 5, Folder: 31, item: 1. Natural History Art and Illustration by D. D. Tyler, MS 337. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/310620 Accessed December 25, 2025.